On Sun, Apr 25, 2010 at 11:54 PM, George Nychis <[email protected]> wrote: > >> >> Do you mean discontinuous in time or frequency? If you're talking >> about frequency (selectively turning off subcarriers, which I've heard >> referred to as non-contiguous OFDM mostly), then there are definitely >> a few implementations out there. I saw two groups at the latest IEEE >> DySPAN conference demoing just such a system. I've been meaning to get >> in touch with both groups to see if they would be willing to let us >> take their updates to our OFDM code and put it in the tree. >> > > In frequency, yep with subcarrier suppression. That would be great to have > with the rise of DSA in the GNU Radio branch. Do you remember who exactly > did the demo? Was it "Software Defined Radio Implementation of SMSE Based > Overlay Cognitive Radio" > > Their slides appear to have subcarrier suppression in them. Reginald goes > to school here, he's part of another wireless group. I will poke him for > the code :) > > - George
Yes, that was one of the teams. I met and talked a bit with Bullmaster, but it sounded like Roulin was the one who did the actual coding of that part. The other team was from Aachen. They also implemented per-carrier modulation, which is another useful trick to have for OFDM and DSA apps. Tom _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
